Firearm sound suppressor



FIG. 1 is an isometric view of an embodiment of our design for a firearm sound suppressor;

FIG. 2 is a right side view of the design for the firearm sound suppressor shown in FIG. 1;

FIG. 3 is a left side view of the design for the firearm sound suppressor shown in FIG. 1;

FIG. 4 is a front view of the design for the firearm sound suppressor shown in FIG. 1; and,

FIG. 5 is a rear view of the design for the firearm sound suppressor shown in FIG. 1. 

CLAIM We claim the ornamental design for a firearm sound suppressor, as shown and described. 